A good explanation of this from BoingBoing
…Big Content haven’t just declared war on Boing Boing and Reddit and the rest of the “fun” Internet: they’ve declared war on every person who uses the net to publicize police brutality, every oppressed person in the Arab Spring who used the net to organize protests and publicize the blood spilled by their oppressors, every abused kid who used the net to reveal her father as a brutalizer of children, every gay kid who used the net to discover that life is worth living despite the torment she’s experiencing, every grassroots political campaigner who uses the net to make her community a better place — as well as the scientists who collaborate online, the rescue workers who coordinate online, the makers who trade tips online, the people with rare diseases who support each other online, and the independent creators who use the Internet to earn their livings…